Square D 9070EO3D1 Control Transformer 150 Va 1 Phase

Product Description

The SQUARE D 9070EO3D1 is a single-phase control transformer rated at 150 VA with a 110-volt output. It steps down line voltage to a stable low-voltage control signal, making it a core component in industrial and commercial control circuits. The transformer is UL Listed and meets CE and CSA standards, confirming compliance with North American and international safety requirements. Licensed electricians and HVAC controls technicians install this unit to power contactors, relays, solenoids, and other control-circuit loads. The unit weighs 6.54 pounds and measures 7.1 inches in length, 6.3 inches in width, and 5.4 inches in height.

This transformer is suited for use in motor control centers, HVAC equipment control panels, industrial machinery, and building automation panels where a reliable 110-volt control voltage is required. It is designed for single-phase applications and fits into new installations as well as replacement projects where an existing control transformer has failed or is being upgraded. Facilities maintenance electricians and controls specialists typically specify this unit for light commercial and industrial environments.

Key Features

• 150 VA power rating supports a range of control-circuit loads including relays, contactors, and solenoids
• 110-volt output provides a standard low-voltage control signal
• Single-phase design suited for both commercial and light industrial control panels
• UL Listed, CSA certified, and CE marked for broad compliance coverage
• Compact footprint at 7.1 x 6.3 x 5.4 inches simplifies panel integration

Compatibility

Designed as an OEM-style replacement control transformer for single-phase industrial and commercial control panel applications requiring a 150 VA, 110-volt output.

Installation Notes

Installation should be performed by a licensed electrician in accordance with the National Electrical Code (NEC). De-energize and lock out the panel before removing an existing transformer or making any wiring connections. Verify that primary voltage matches the available supply before energizing, and confirm that the connected control-circuit load does not exceed the 150 VA rating.